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General Liquid/Water Cooling Discussion For discussion about Full Cooling System kits, or general cooling topics. Keep specific cooling items like pumps, radiators, etc... in their specific forums. |
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#26 | |
Cooling Savant
Join Date: Jan 2002
Location: in a nice cool spot
Posts: 427
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also the performance is even better than I initally thought, when I first assembled it I had alignment problems that would cause some of the impellers to jam, well after I thought I had fixed that I did that head test, it turned out that the pump at the intake end had jammed again!, so it was doing 2.5m head with only 2 pumps going! I got all 3 pumps going and ran out of ceiling, lol, (I have 2.6m ceilings) I'll have to test it outside in the morning, it looks like it should be about 3m or so. I havn't addressed the valves yet, but they will get looked at when I do some more in depth testing.
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#27 |
Cooling Savant
Join Date: Sep 2002
Location: Santiago, Chile
Posts: 403
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Wow Volenti, your results are impressive!!!
I consider your pump mods saga to be one of the "greatest invenions for the DIY". It desserves to be on a permanent place in the site for future reference. I see the title for your bidirectional pump mod shining on the main procooling page: "UNCOVERING YOUR HIDDEN PUMP POWER" by Volenti ![]() ![]() |
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#28 |
Cooling Savant
Join Date: Jan 2002
Location: in a nice cool spot
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Well I must say I'm pretty happy
![]() here's the head test setup showing the max head (all 3 pumps going) ![]() results; 3 pumps - 3.4m head 2 pumps - 2.3m head 1 pump - 1.2m head in-system flow rate tests to come.
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#29 |
Cooling Neophyte
Join Date: Aug 2002
Location: Oregon-
Posts: 43
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OH man thats a SWEET setup~ whats the GPH at the 3.4M head?
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#30 | |
Cooling Savant
Join Date: Jan 2002
Location: in a nice cool spot
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it's simply a measure of the maximum pressure the pump can achieve. It's the same with most other commercial pumps, unless they say something like "350GPH@2.5m head" then they are talking about the max head that the pump can achieve, there's no actual water flow at that point.
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#31 |
Cooling Savant
Join Date: Mar 2001
Location: Sugar Land, Tx
Posts: 176
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I wish I had the ability to do something like that.
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Intel p4 2.26@3.0 Abit BD7II-Raid,1gb Corsair 3200 ATI Radeon 9700 3 80gb Seagates 3 40gb Maxtors |
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#32 | |
Cooling Savant
Join Date: Jul 2002
Location: Toronto, Canada
Posts: 381
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Michael E. Robbins M.A.Sc. Candidate, University of Toronto 12.1 GHz of AMD's finest (17.7 GHz total) crunching proudly for the AMDMB.com Killer Frogs SETI BOINC: Dual Opteron 246s (Iwill DK8N) | XP2800+ (Shuttle SN41G2) | 3x XP2400+ (ASUS A7N266-vm) SETI BOINC: 2x P4 2.8E (ASUS P4R800-vm) | Crunching 24/7 |
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#33 |
Thermophile
Join Date: Aug 2002
Location: Just shut up ;) ...
Posts: 1,068
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It's the cost difference between them though is'nt it?. 1 Iwaki20RZT will cost me £165 in the UK, I could mod two1250 Eheims an run them parallel for under £90!. three of them would surpass the Iwaki for £135!. It's not just the headmod either, it's the triparallel mod too...
Plus no~one has done it before ![]() |
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#34 | |
Cooling Savant
Join Date: Sep 2002
Location: Santiago, Chile
Posts: 403
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#35 | |
Cooling Savant
Join Date: Jul 2002
Location: Toronto, Canada
Posts: 381
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Like I said before. I am not trying to rain on Volenti's parade. It's a great and creative project, and I am thrilled to see him succeed. However, much like overclocking, better performance can be had by spending just a tad more money in the first place. Volenti, if you're reading this, please don't think I'm picking on you too much...
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Michael E. Robbins M.A.Sc. Candidate, University of Toronto 12.1 GHz of AMD's finest (17.7 GHz total) crunching proudly for the AMDMB.com Killer Frogs SETI BOINC: Dual Opteron 246s (Iwill DK8N) | XP2800+ (Shuttle SN41G2) | 3x XP2400+ (ASUS A7N266-vm) SETI BOINC: 2x P4 2.8E (ASUS P4R800-vm) | Crunching 24/7 |
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#36 | |
Cooling Savant
Join Date: Jan 2002
Location: in a nice cool spot
Posts: 427
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If I could get an MD-20-RZT locally (or even on-line within australia) I wouldn't have hesitated to get one, and this mod would never had happened.
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#37 | |
Thermophile
Join Date: Aug 2002
Location: Just shut up ;) ...
Posts: 1,068
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![]() Think of all the people who actualy own pumps that they can now (if they've the initiative) mod to maybe double the head of their pumps. Tell me Skulemate what kind of pump do you have in your rig?... |
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#38 |
Cooling Savant
Join Date: Sep 2002
Location: Santiago, Chile
Posts: 403
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This mod could also take an advantage in pump heat (total wattage) versus head, compared to buying a higher rated pump.
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#39 |
Cooling Savant
Join Date: Jul 2002
Location: Toronto, Canada
Posts: 381
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I currently have a Little Giant 3-MD-SC, as it was easily attainable when I built my system. It works quite well, though the flow from it is a bit too high considering its head rating, but for now it's doing the job I suppose. However, I've sourced and priced the Iwaki MD-20-RZT, and I'm planning to make the switch sometime early next year.
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Michael E. Robbins M.A.Sc. Candidate, University of Toronto 12.1 GHz of AMD's finest (17.7 GHz total) crunching proudly for the AMDMB.com Killer Frogs SETI BOINC: Dual Opteron 246s (Iwill DK8N) | XP2800+ (Shuttle SN41G2) | 3x XP2400+ (ASUS A7N266-vm) SETI BOINC: 2x P4 2.8E (ASUS P4R800-vm) | Crunching 24/7 |
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#40 |
Thermophile
Join Date: Aug 2002
Location: Just shut up ;) ...
Posts: 1,068
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Numbers were on my side and still I failed
![]() Nevermind! ![]() I'd like to be able to afford the Iwaki but at £165($250+US!) it's too much, the Eheim was too much @ £45!. I'll wait until I find a way of getting the valves down pat then mod it. if I could gaurentee a good cooling increase over the 1250(modded) I'd save for one, but getting it in a case is daunting as well. I'll just have to wait and pray a cheap one comes my way... |
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